209 replies to this topic

[WizardStan]

The puzzle solving nerd in me is kind of hoping I get one with the sound problem so I can see it first hand and try to fix it. But then I remember that I want a good Pandora.
(I tease, sorry)

[PokeParadox]

I do have some sound distortion... I keep playing with the mixer level for volume and it's reduced the frequency of the distorted sound.
I do think is is a software problem and will be fixable in the near future!

[HackModford]

so I managed to get the pandora to recognize the imic by using a hub. Sadly when I have it set as the soundcard I get no audio. If I unplug the device goes back to internal speakers...
any suggestions?

[paulguy]

Hmm, plugging in a USB sound card in linux should just make it a secondary sound card, not disable the primary sound card, unless there's some odd configuration here.

The "second" sound card won't work with any programs by default, of course. You'd have to specifically select it or configure ALSA to make it the primary (not sure how this is done without having to edit config files and reload a bunch of stuff, to be honest. Kinda sucks if you only need it changed temporarily.).

[marshal]

Doesn't the pandora uses pulseaudio ?? That would make it much easier to moove the sound over to the USB soundcard (or using both at the same time)

[x68000]

Mine works great 95% of the time but the other 5% it has a glitch in the sound which may last for a second or two. Occasionally on MAME it gets very glitchy for longer periods and only pausing the emulator and unpausing helps it out.

[HackModford]

Well I wouldn't mind changeing it permanently since it would be better than what I got... (theoretically of course)

[MDave]

The only glitch I have with sound is when I use headphones while playing Picodrive, it sounds really funky when adjusting the volume!

[x68000]

^mine has the same output problems regardless what it feed through (speakers, earphones, cans etc)

[EvilDragon]

^mine has the same output problems regardless what it feed through (speakers, earphones, cans etc)

That's a completeley different thing. That's ALSA doing buffer underruns when CPU Usage is too high (which happens with MAME, for example).
That's something that needs to be fixed with software.

The other problem we were talking about here is that sometimes (or almost always on some units) the sound initialization seems to fail and only noise comes out.
IF a game runs, it runs fine - and if the noise appears, it stays like that.

[HackModford]

Okay I'm not getting noise I'm getting the sound it's just clipped/garbled but it's recognizeable.

Other news... I sucessfully got my imic to work! And the sound was A Okay! The only thing is I restarted and now I can't get it to be recognized anymore...

I can't get anything to be recognized through USB now... bummer...

Restarted multiple times... nothing... going to try shutdown and then turn on. Pandora is USB 2.0 right? imic is usb 2.0 right? shouldn't need a hub right?

I'm going to reflash...

Oh by the way... this post is what helped me get it working.

Plugged hub into mac... works fine... imic through hub works fine... Do i have bad usb now too?

Edited by HackModford, 09 June 2010 - 02:58 PM.

[x68000]

^mine has the same output problems regardless what it feed through (speakers, earphones, cans etc)

That's a completeley different thing. That's ALSA doing buffer underruns when CPU Usage is too high (which happens with MAME, for example).
That's something that needs to be fixed with software.

The other problem we were talking about here is that sometimes (or almost always on some units) the sound initialization seems to fail and only noise comes out.
IF a game runs, it runs fine - and if the noise appears, it stays like that.

That makes sense as pausing seems to allow the buffer to catch up and things run ok for a while.

There has been some ALSA related talk in this thread. Hope everyone is clear as to what their problem is related to.

[Bosbeetle]

iI will check this thread later my sound seems to be wonky as well, a lot of static and my volume weel does not work properly there is a slight difference in completly up and completly down but its hardy noticible.

[mcobit]

Maybe it would be an idea to check the sound issues with a minimal os with sound drivers and mp3blaster from commandline.
Then you could tell if it is software related.

Edited by mcobit, 10 June 2010 - 10:42 AM.

[HackModford]

Wish I knew how... I got the imic working and the sound is perfect through that.